Many fans felt pretty good about the team when Barry Sanders was with them and it reflects in this chart. These good feelings created a brief rift in the curse. If you remove this era, you can plainly see that the Lions are exactly where they should be as the winning percentage continues to drop in a very linear way.
The downward slide of the Lions would finally bottom out in the last year of the curse, 2008. The Lions would become the only team in NFL history to go 0-16 since the NFL adopted a 16 game schedule.